TC1265-3.3VOA Microchip Power Supply (Small Outline Packages) In Stock
The TC1265-3.3VOA is a fixed 3.3 V LDO linear regulator from Microchip with a nominal 0.45 V dropout voltage and up to 6 V input range. Packaged in an 8-pin SOIC, it provides a stable regulated 3.3 V output for microcontrollers, FPGAs, and logic supply rails in space-efficient surface-mount designs.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- TC1265-3.3VOA Datasheet PDF
- Category
- Power Supply
- Price
- From $0.7244(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 3.3 V output voltage with tight regulation for logic and microcontroller supply rails
- Low nominal dropout voltage of 0.45 V (maximum 1.3 V) enabling operation from 4.3 V to 6 V inputs
- 8-pin SOIC-8 surface-mount package for standard SMT assembly and small PCB footprint
- Absolute maximum input voltage of 6.5 V providing margin for transient protection
- Pb-free, RoHS-compliant construction with JEDEC e3 moisture sensitivity rating
- Fixed output simplifies design by eliminating external resistor divider network
Applications
The TC1265-3.3VOA is used in embedded systems, microcontroller boards, and portable instruments where a 5 V source must be regulated down to a clean 3.3 V rail with minimal dropout and low quiescent current. It also appears in USB-powered accessories, Wi-Fi module supply circuits, and battery-backed logic boards where space-efficient SOIC-8 packaging and a fixed 3.3 V output simplify BOM management.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-8 |
| Factory Lead Time | 10Weeks |
| YTEOL | 8 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 1.3V |
| Dropout Voltage1-Nom | 0.45V |
| Input Voltage Absolute-Max | 6.5V |
| Input Voltage-Max | 6V |
| Input Voltage-Min | 4.3V |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.01155% |
| Load Regulation-Max | 0.00033% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.8A |
| Output Voltage1-Max | 3.3825V |
| Output Voltage1-Min | 3.2175V |
| Output Voltage1-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Screening Level | TS 16949 |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Voltage Tolerance-Max | 2.5% |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Mainland China, Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the minimum input voltage TC1265-3.3VOA needs to maintain a regulated 3.3 V output?
TC1265-3.3VOA requires a minimum input of 4.3 V to sustain a regulated 3.3 V output, corresponding to the nominal 0.45 V dropout voltage. Under worst-case conditions with a maximum 1.3 V dropout, the input must stay above 4.6 V to guarantee regulation, which is easily met from a 5 V USB or regulated wall supply.
Can TC1265-3.3VOA be used directly from a single-cell Li-Ion battery as the supply drops during discharge?
A single-cell Li-Ion battery typically discharges from 4.2 V down to about 3.0 V. TC1265-3.3VOA requires at least 4.3 V input to maintain its 3.3 V output, so regulation will drop out before the battery is fully depleted. For Li-Ion single-cell designs, consider a lower-dropout LDO rated for under 0.2 V dropout, or use a two-cell configuration supplying at least 6 V input.
How does the SOIC-8 package of TC1265-3.3VOA compare to SOT-223 packages for thermal management?
The SOIC-8 package provides moderate thermal dissipation through its 8-lead copper frame, but the SOT-223 package has a larger exposed pad offering lower junction-to-board thermal resistance, typically 25°C/W versus 80°C/W for SOIC-8. For output currents above 200 mA with higher input-output differentials, a SOT-223 packaged LDO may be preferred; the TC1265-3.3VOA in SOIC-8 is optimal for low-to-moderate current supplies under 300 mA.
What is the procurement lead time and shelf life consideration for TC1265-3.3VOA?
Microchip lists a factory lead time of approximately 10 weeks for TC1265-3.3VOA in SOIC-8. The part carries a YTEOL score of 8 indicating it remains in active production. Buyers should place safety stock orders 3 months ahead for production builds and confirm availability with authorized distributors for immediate delivery needs.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.9800 | $0.98 |
| 25+ | $0.8100 | $20.25 |
| 100+ | $0.7875 | $78.75 |
| 200+ | $0.7600 | $152.00 |
| 400+ | $0.7308 | $292.31 |
| 800+ | $0.7244 | $579.51 |
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